Safety and efficacy of abobotulinumtoxinA for hemiparesis in adults with upper limb spasticity after stroke or traumatic brain injury: a double-blind randomised controlled trial. Lancet Neurol. 2015 Oct;14(10):992-1001. doi: 10.1016/S1474-4422(15)00216-1.
It usually consists of a court of final appeal (called the  Supreme court  or  Constitutional court ), together with lower courts. In many jurisdictions the judicial branch has the power to change laws through the process of judicial review.
The purpose of the Judicial branch is to fulfill the mandate of the Constitution to the effect that every person has a right to a trial by jury in front of a competent judge. The Judicial Branch is comprised of the Supreme Court, United States district courts, and United States courts of appeals. All of these are Federal courts, and can make decisions concerning interpretation of the law that are binding on lower courts.